We also recently bought a ZD326 which is great except for the touchy controls. Plan on having it for many years to come. This is our third Kubota Zero turn. Our oldest one (ZD21) has about 3500 hrs on it but not sure we are on our second hour meter. These are indestructible we use it every day and haven't made many repairs mainly just general maintenance very reliable machines. Our other ZD21 has about 2500 hrs.